Senior Backend Developer Position

We are seeking a highly skilled Backend Engineer to join our team.

Job Description

This is an exciting opportunity for a seasoned backend engineer to take on new challenges and contribute to the development of our mission-critical platforms. The successful candidate will be responsible for designing, implementing, and maintaining high-quality, scalable, and secure backend systems using ASP.NET Core Web APIs and background workers.

Additionally, the ideal candidate will have experience with event-driven services, including producers, consumers, idempotent processing, retry strategies, and dead-letter queues. They should also be familiar with DDD principles, clean architecture, and modular design patterns.

The role requires strong data management skills, including database design, migrations, performance tuning, and transactions. Experience with Ultimus BPM for workflow automation and human task orchestration is a plus.

Observability is key in this position, and the successful candidate should be well-versed in adding metrics, logging, and tracing to their codebase using tools like Serilog and Elastic / Kibana.

Requirements

• At least 5 years of experience in backend engineering, with a minimum of 2 years in .NET Core / ASP.NET Core production environments.
• Strong understanding of microservices patterns, including saga, outbox / inbox, circuit breaker, retries, and idempotency.
• Deep knowledge of Kafka, including topics, partitions, consumer groups, and offset management.
• Solid experience with SQL Server, including query plans, indexing, transactions, isolation levels, and Entity Framework Core.
• Familiarity with on-prem Kubernetes, including containers, networking, scaling, and health / readiness probes.
• Proven expertise in observability practices, including logs, metrics, tracing, diagnostics, and performance profiling.
• Strong security mindset, with experience in API hardening, secrets management, and least privilege access.
• Familiarity with CI / CD pipelines and code quality tools like SonarQube.
• Excellent communication and documentation skills.

Nice to have : Redis, Nginx, GraphQL, SignalR, event sourcing, CQRS, and performance engineering at scale.